This is the list of Ferb's lines in Season 3.

Episode Quote
"The Great Indoors" Phineas: Behold, Mount Ferberest.
A boulder falls on Adyson's head
Ferb: Sorry, Adyson.
Adyson: (Dazed) The salamanders are back.
Isabella: Who wants a Concussion First-aid Patch?
Phineas: Congratulations ladies, how do you feel about non-powered flight Patches?
Fireside Girls: Woo-hoo! Yeah!
Ferb: Marvelous.
"Canderemy" Isabella: So uh... Phineas, I was wondering that maybe after this you'd like to go to the premiere of the new Stumbleberry Finkbat movie.
Phineas: Huh? Oh sure, sounds cool.
Ferb: I'd like to go to that.
Isabella: Well, what are we waiting for?
Ferb: I believe we're waiting for Rover to put the molecular separator down.
After Phineas and Ferb fused together by the combine-inator.
Phineas: Hey, does this mean we can all go now?
Ferb:Yes, yes it does.
"Run, Candace, Run" -None-
"Last Train to Bustville" "He makes history come alive."
Phineas: Check it out, a dodo bird! What's next on the list, Ferb?
Ferb: Frankenstein's brain.
"Phineas' Birthday Clip-O-Rama!" -None- (He says a line in a Clip from "One Good Scare Ought to Do It!")
"The Belly of the Beast" -None-
"Moon Farm" "Well, photosynthesis will start creating oxygen, and then eventually an atmosphere. Our bovine friends will be fine."
"Ask a Foolish Question" "And by the way, nice use of the accordion arm."
"Misperceived Monotreme" Linda: Well that seems unlikely.
Ferb: Yes, yes it does.
"Candace Disconnected" Phineas: You know what, Ferb? This is gonna be the most interesting thing we've ever built.
Ferb: And the tallest.
Phineas: Yes, and the tallest.
Ferb: And the heaviest.
Phineas: Wow, we're chatty today, aren't we?
Phineas: Well, you were right, Ferb. The most interesting thing we ever built was very tall and very heavy, and the guy from the museum was very appreciative.
Ferb: I still can't believe it fit in his truck.
"Magic Carpet Ride" Ferb: Does anyone else want to be king of the world?
Phineas: Eh, keep it, Bro. It suits you.
"Bad Hair Day" Phineas: Why? Your hair looks simplicious!
Ferb: Have you tried tossing your head back?
"Meatloaf Surprise" Phineas: Buford's pulling us down.
Baljeet: How is that possible? He weighs no more down there than he did up here!
Ferb: It's probably best not to question.
"Phineas and Ferb Interrupted" Phineas: (sighs) It's good to be back.
Ferb: Yes, yes it is.
"A Real Boy" -None-
"Mommy Can You Hear Me?" Linda: And look, the kids cleared a perfect spot for my snapdragons. I think that earned you some pie.
Buford, Isabella, Ferb and Phineas: Hooray!
Phineas: I guess we'll never be able to wish him a happy birthday.
: Well never say never.
Ferb/Alien "fetus" to old Sergei in bed
Ferb: Happy birthday!
Sergei: They did remember, such nice boys.
"Road Trip" -None-
"Tour de Ferb" "They need to change the battery on the tiger excluder."
"Skiddley Whiffers" Phineas: (about Candace winning) Wow! Twice in one day!
Ferb: Skiddley Whiffers is a cruel mistress; cold and unforgiving.
"My Fair Goalie" Phineas: Ferb, you came to play.
Ferb: As long as my team will have me, curse and all.
Phineas: Of course we will. It's not about winning, it's the joy of the game.
Beckham (blond): Actually, it's about winning.
Phineas: What happened? I guess the curse wasn't broken.
Ferb: No, it's broken. Sometimes you just miss.
Beckham (blond): Oy, cousin Ferb we're dreadful sorry for giving you such a hard time, you're a brilliant footballer, an all-around good chap and a Brit through and through.
Ferb: Actually lads I'm not a Brit or a Yank. I'm just Ferb.
"Bullseye!" Phineas: I think that's Dad.
Ferb: What's his topic of his lecture again?
"That's the Spirit" Phineas, Ferb and Candace: Trick or Treat!
Phineas : Wait a minute if you're a ghost and you have a pumpkin on your head. What does that make you when you were alive?
Ferb: The probability of a humanoid-vegetable hybrid is exceedingly remote.
"The Curse of Candace" Candace: Well, I can lift heavy objects, and I can levitate, and...and I can't see my reflection in the mirror.
Ferb: Sounds like a vampire to me.Ferb backs up into the doorway, shielding his face.
Phineas: Woah, woah, woah, woah. Come here, Ferb, come here.
"Escape from Phineas Tower" "Plus there was that small matter of circumnavigating around the Earth."
Phineas: The entire galaxy that enough elbow room for you?
Ferb: Well for today.
"Lotsa Latkes" Phineas: What's Perry doing in a pillory?
Ferb: Actually those are stocks, a pillory forces the wearer to remain upright, exposing them to poking and prodding from passers-by.
"Ferb Latin" "Our dad sells antiques."
Sings in Ferb Latin (song)
A Phineas and Ferb Family Christmas "Every family Christmas special needs a little false drama."
Linda: Hey, boys. I heard you were doing Christmas in July.
Candace: Yes, yes they were. And... and... it was actually really sweet.
Everyone: Aw!
Sings in We Wish You A Merry Christmas
"Tri-Stone Area" Gerb: I guess we should wait for tomorrow before we tell them our new language.
Phinebunk: Yes, yes we should.
Sings in Zubada
"Doof Dynasty" Phineas: What's he doing?
Ferb: That's a ripple dissolve. He must be having a flashback.
Phineas: Does he know that we can't see it?
Sings in The Way of the Platypus
Elderly Phineas: Well, that took longer than expected.
Elderly Ferb: But, it is a great wall.
Elderly Phineas: Yeah. So, what you wanna do tomorrow? (Ferb glares at him and leaves) What? I kid. We can rest, how about a game of mahjong?
"Excaliferb" "Yeah. Okay, I'm down with that."
"Behold evil wizard Millifishmirtz, I hold the sword Excaliferb. This mystical vorpal blade was given to me by The Lady of the Puddle. Get a good look at it, for it is the instrument of your demise! (The blade of the sword falls off the hilt) Well, uh, okay. So big deal, the end comes off."
"Phineas and Ferb and the Temple of Juatchadoon" Phineas: By the way, anyone else find weird that we're saved by an anthropomorphic platypus?
Ferb: The world holds many mysteries, and what seems strange that the one maybe common place to another. The fez was weird though, I mean we're not in Egypt.
"Monster from the Id" Candace: What's that?
Baljeet: It is all of Candace's anxieties.
Phineas: There are so many of them.
Ferb: She has a rich internal life.
Buford: Yeah, she's really messed up.
Candace: Buford?!
"Gi-Ants" Phineas: Do you think the ants will return someday?
Ferb: Yes, probably while we're having a picnic.
"The Remains of the Platypus" Phineas: Hey, where'd it go?
Candace: Now you know how I feel.
Ferb: Well; wherever it landed, I hope they could handle a party of that magnitude.
He also laughs when Buford was saying his cheese-puns.
"Mom's in the House" Linda: Who wants pizza? Then ice cream sandwiches. Ice Cream cut into shapes of a sandwich.
Ferb: Just pie for me, please.
"Perry The Actorpus" -None-
"Let's Bounce" Phineas: Hey, Ferb, nice hang time.
Ferb: (Pulls out small device) Personal anti-gravity device.
Phineas: I guess we should install that reverse button now, we wouldn't want you bouncing off the ceiling during brunch.
Ferb: That would be a little rough from the old frittata.
"Bully Bromance Breakup" Isabella: Phineas, go!
Phineas: Ice chalet!
(Construction noises)
Ferb: If we hadn't been able to invent something soon, I was going to scream.
"Quietest Day Ever" Ferb: Did you ever notice in a certain light Buford looks sort of handsome?
Buford: It's both a blessing and a curse.
"The Doonkelberry Imperative" Phineas: We should cast our net a little wider than Danville.
(As Phineas types, his laptop pings.)
Phineas: Bingo! Its looks like there's some in Drusselstein.
Ferb: Drusselstein is a rustic Eastern European country, whose primary export in Doonkleberries.
"Meapless in Seattle" Isabella: How will we know when we get to Seattle?
Ferb: We're here.
"Delivery of Destiny" Paul: What did you guys do? Install a homing sensor?
Ferb: Actually, we just put a clip on it.
"Buford Confidential" Phineas: Ferb, do you remember ordering that bear?
Ferb: (Says something that can't be heard because he was snorkeling)
Phineas: Oh, man! That would have been so funny without the snorkel.
"The Mom Attractor" Candace: Why does Mom have one of those?
Ferb: Women are a mystery.
"Cranius Maximus" "Actually the Babylonians had defunct as a distinct culture for millennium prior to the introduction of playing cards in India."
"It pays to show up on time."
"Agent Doof" (Seeing Phineas and Ferb as babies)
Phineas: (Blows raspberry)
Ferb: (Babbles)
"Minor Monogram" "Well, who's up for sprummer?"
"What A Croc!" "Oh, looks like little Crickey grew up."
"Sleepwalk Surprise" "At the Yorkshire Athletic School of In Your Face."
"Sci-Fi Pie Fly" -None-
"Sipping with the Enemy" "A magician never reveals his secrets."
"Tri-State Treasure: Boot of Secrets" "Perhaps next time we should buy new."
"Doofapus" Phineas: I think we need to try something a little more...
Ferb: Foul?
Phineas: Yeah! No, exotic!
"Norm Unleashed" -None-
"Where's Perry?"

Phineas:: You had me at "Scrap".
: You had me at "Scra...".

"Wow, they really nailed that name."
"Where's Perry? (Part Two)" Baljeet: We are in Africa.
Isabella: Yeah.
Buford: Pretty much sums it up.
Ferb: Well, has he been wrong before?
"Well, ever since George Shaw wrote the first description of the platypus for highly skeptical European scientists in 1798, this unique creature has become synonymous with the word "impossible"."
"Ferb TV" Phineas: Okay, give it a chance. We want your honest opinion.
Ferb: We know it's a little weird.
"When Worlds Collide" "Don't worry, it will be alright."
"What'd I Miss?" "We finished earlier than expected."
"Training nuts? Okay, what did I miss?"
"Road to Danville" "Actually, I didn't find it all that exciting."
"This Is Your Backstory" Candace: Alright, what is this?
Phineas: Table Tennis.
Ferb: Ping-pong for the lay man.
Blackout! -None-
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